Did men wear underpants in the past? well some did and some didn’t. The ancient Greeks abhorred this item of clothing defining it as “barbaric” and unhygienic. The Romans adopted them in extremis to keep warm in the northern outposts of the Empire. They took the idea from the barbarians who wore tunics and trousers as their costume. But under the toga a roman citizen would have only worn his tunic which served as outer garment/undergarment, often even slept in at the end of the day. A fresh tunic would have been put on after the daily ablutions.

With the middle ages the barbaric custom prevails and soon all men wear underpants under their tunics (as well as an under shirt/tunic). Very simple in shape, made of linen and held up at the waist with a draw string. Baggy and comfortable. the peasant in the mosaic is working in the field in the summer heat and has stripped down to his underpants

peasant, mosaic, 12 th Century, St Philibert Abbey, Tournus, France

Everything changed once men started wearing clothing that was closely constructed to the body. By mid 1300s we get into the western pattern cutting era and a new age of male body consciousness. Baggy underpants are out, skin-tight briefs are in.